docs(diagrams): rename number-carrying diagram files to stable names

mcp-tools-107.{mmd,svg} -> mcp-tools.{mmd,svg} and
auto-combo-12factor.{mmd,svg} -> auto-combo-scoring.{mmd,svg}: filenames that
embed a canonical count fossilize the moment the count moves (107 -> 110,
12 -> 15 factors already happened). All referencers updated — diagrams index,
AUTO-COMBO.md (+ its pl/zh-CN/zh-TW mirrors' links) and the check:docs-counts
file list.

docs/diagrams/README.md

@@ -13,10 +13,10 @@ Mermaid sources (`.mmd`) and exported SVGs for OmniRoute v3.8.0 architecture flo
 | Source                                               | Exported                                  | Used in                                                                        |
 | ---------------------------------------------------- | ----------------------------------------- | ------------------------------------------------------------------------------ |
 | [request-pipeline.mmd](./request-pipeline.mmd)       | [SVG](./exported/request-pipeline.svg)    | docs/architecture/ARCHITECTURE.md, docs/architecture/CODEBASE_DOCUMENTATION.md |
-| [auto-combo-12factor.mmd](./auto-combo-12factor.mmd) | [SVG](./exported/auto-combo-12factor.svg) | docs/routing/AUTO-COMBO.md                                                     |
+| [auto-combo-scoring.mmd](./auto-combo-scoring.mmd) | [SVG](./exported/auto-combo-scoring.svg) | docs/routing/AUTO-COMBO.md                                                     |
 | [resilience-3layers.mmd](./resilience-3layers.mmd)   | [SVG](./exported/resilience-3layers.svg)  | docs/architecture/RESILIENCE_GUIDE.md, CLAUDE.md                               |
 | [i18n-flow.mmd](./i18n-flow.mmd)                     | [SVG](./exported/i18n-flow.svg)           | docs/guides/I18N.md                                                            |
-| [mcp-tools-107.mmd](./mcp-tools-107.mmd)             | [SVG](./exported/mcp-tools-107.svg)       | docs/frameworks/MCP-SERVER.md                                                  |
+| [mcp-tools.mmd](./mcp-tools.mmd)             | [SVG](./exported/mcp-tools.svg)       | docs/frameworks/MCP-SERVER.md                                                  |
 | [cloud-agent-flow.mmd](./cloud-agent-flow.mmd)       | [SVG](./exported/cloud-agent-flow.svg)    | docs/frameworks/CLOUD_AGENT.md                                                 |
 | [authz-pipeline.mmd](./authz-pipeline.mmd)           | [SVG](./exported/authz-pipeline.svg)      | docs/architecture/AUTHZ_GUIDE.md                                               |
 | [db-schema-overview.mmd](./db-schema-overview.mmd)   | [SVG](./exported/db-schema-overview.svg)  | docs/architecture/CODEBASE_DOCUMENTATION.md                                    |

docs/i18n/pl/docs/routing/AUTO-COMBO.md

@@ -163,9 +163,9 @@ Helper detekcji żyje w `src/lib/combos/modelNameCollision.ts`.
 
 Silnik Auto-Combo dynamicznie wybiera najlepszego providera/model dla każdego żądania przy użyciu **13-czynnikowej funkcji scoringu** (zdefiniowanej w `open-sse/services/autoCombo/scoring.ts` → `DEFAULT_WEIGHTS`). Wszystkie wagi sumują się do **1.0**.
 
-![Auto-Combo 13-factor scoring](../diagrams/exported/auto-combo-12factor.svg)
+![Auto-Combo 13-factor scoring](../diagrams/exported/auto-combo-scoring.svg)
 
-> Źródło: [diagrams/auto-combo-12factor.mmd](../diagrams/auto-combo-12factor.mmd) (regeneruj przez `npm run docs:render-diagrams`). Historyczna nazwa pliku pochodzi sprzed dodania kolejnych czynników; bieżący diagram pokazuje wszystkie 13.
+> Źródło: [diagrams/auto-combo-scoring.mmd](../diagrams/auto-combo-scoring.mmd) (regeneruj przez `npm run docs:render-diagrams`). Historyczna nazwa pliku pochodzi sprzed dodania kolejnych czynników; bieżący diagram pokazuje wszystkie 13.
 
 | Czynnik               | Domyślna waga | Opis                                                                                                     |
 | :-------------------- | :------------ | :------------------------------------------------------------------------------------------------------- |

docs/i18n/zh-CN/docs/routing/AUTO-COMBO.md

@@ -104,9 +104,9 @@ handleComboChat（与持久化 Combo 相同的引擎）
 
 Auto-Combo 引擎使用**13 因子评分函数**（定义在 `open-sse/services/autoCombo/scoring.ts` → `DEFAULT_WEIGHTS`）为每次请求动态选择最佳服务商/模型。所有权重之和为 **1.0**。
 
-![Auto-Combo 13-factor scoring](../diagrams/exported/auto-combo-12factor.svg)
+![Auto-Combo 13-factor scoring](../diagrams/exported/auto-combo-scoring.svg)
 
-> 来源：[diagrams/auto-combo-12factor.mmd](../diagrams/auto-combo-12factor.mmd)（通过 `npm run docs:render-diagrams` 重新生成）。文件名为历史名称；当前图表包含全部 13 个因子。
+> 来源：[diagrams/auto-combo-scoring.mmd](../diagrams/auto-combo-scoring.mmd)（通过 `npm run docs:render-diagrams` 重新生成）。文件名为历史名称；当前图表包含全部 13 个因子。
 
 | 因子                    | 默认权重 | 描述                                                                                           |
 | :---------------------- | :------- | :--------------------------------------------------------------------------------------------- |

docs/i18n/zh-TW/docs/routing/AUTO-COMBO.md

@@ -116,9 +116,9 @@ handleComboChat（與持久化組合使用相同引擎）
 
 自動組合引擎使用**13 因子評分函數**（定義於 `open-sse/services/autoCombo/scoring.ts` → `DEFAULT_WEIGHTS`）為每個請求動態選擇最佳的提供者/模型。所有權重合計為 **1.0**。
 
-![自動組合 13 因子評分](../diagrams/exported/auto-combo-12factor.svg)
+![自動組合 13 因子評分](../diagrams/exported/auto-combo-scoring.svg)
 
-> 來源：[diagrams/auto-combo-12factor.mmd](../diagrams/auto-combo-12factor.mmd)（可透過 `npm run docs:render-diagrams` 重新生成）。檔名是歷史名稱；目前圖表包含全部 13 個因子。
+> 來源：[diagrams/auto-combo-scoring.mmd](../diagrams/auto-combo-scoring.mmd)（可透過 `npm run docs:render-diagrams` 重新生成）。檔名是歷史名稱；目前圖表包含全部 13 個因子。
 
 | 因子                                    | 預設權重 | 說明                                                                         |
 | :-------------------------------------- | :------- | :--------------------------------------------------------------------------- |

docs/routing/AUTO-COMBO.md

@@ -186,9 +186,9 @@ See [#7992](https://github.com/diegosouzapw/OmniRoute/issues/7992) and [#7111](h
 
 The Auto-Combo Engine dynamically selects the best provider/model for each request using a **15-factor scoring function** (defined in `open-sse/services/autoCombo/scoring.ts` → `DEFAULT_WEIGHTS`). The default weights sum to `1.0`; custom weights are renormalized by `normalizeScoringWeights()`. Two of the fifteen — `cacheAffinity` and `resetWindowAffinity` — carry a default weight of `0`: they are still computed for every candidate, and `cacheAffinity` gates prompt-cache deduplication outside the score, so they are declared factors that simply do not vote by default.
 
-![Auto-Combo 15-factor scoring](../diagrams/exported/auto-combo-12factor.svg)
+![Auto-Combo 15-factor scoring](../diagrams/exported/auto-combo-scoring.svg)
 
-> Source: [diagrams/auto-combo-12factor.mmd](../diagrams/auto-combo-12factor.mmd) (regenerate via `npm run docs:render-diagrams`). The filename is historical; the source and rendered diagram show all 15 factors declared in `DEFAULT_WEIGHTS`.
+> Source: [diagrams/auto-combo-scoring.mmd](../diagrams/auto-combo-scoring.mmd) (regenerate via `npm run docs:render-diagrams`). The filename is historical; the source and rendered diagram show all 15 factors declared in `DEFAULT_WEIGHTS`.
 
 | Factor                | Default Weight | Description                                                                                                                                                                                 |
 | :-------------------- | :------------- | :------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ |

scripts/check/check-docs-counts-sync.mjs

@@ -598,7 +598,7 @@ export function buildChecks() {
         "docs/guides/FEATURES.md",
         "docs/guides/FREE_PROVIDER_RANKINGS.md",
         "docs/diagrams/strategies-grid.svg",
-        "docs/diagrams/auto-combo-12factor.mmd",
+        "docs/diagrams/auto-combo-scoring.mmd",
         "llm.txt",
         "open-sse/services/autoCombo/routerStrategy.ts",
         "open-sse/services/taskAwareRouter.ts",